Concrete form apparatus



March 12, 1935. v P, BEGHETTl 1,994,166

CONCRETE FORM APPARATUS Filed Feb. 16, 1932 INVENTOR. 057-5? B66 #5 77'/ BY W A TTORNE YS.

. 25 it is partially embedded;

' Patented kMar. 12,"1. 935 1 Y Ihis invention relates to nioldV changes `as are supported on rows oistudding 2. [The prop# used for holding together .the sides oiinolds or er spacingjof the form .walls 1 is accomplished forms for concrete walls in buildings or fcolby means ofA tie rods'lfR. running transversely umris, etc. f i across the formand extending throughthe Walls The objects of the inventionare to provide to aldistancebeyond the studding-on either side 5 a simple clamp for spacing and' retaining in` tlflereof;` Y position the sides of the formscorrrnolds as .setV The tie rods R preferably comprisezsolid rods up for receiving wet mixed concrete or fcement as shownin the drawing, or they maybe made' in the building oi concrete walls-columns, etc., offpipe. g Opposite'endportions 3 of the Vrod which mold clamp is easily usedfinordinary iorin Vare attened on opposite ,sides as indicated Vin 10 construction and quickly removed whenfdesired. the drawing, leaving aCentral fsection 4 en- Other'ohjects will appear inthe following olelarged l'The end portions 3 may be ilattened scription.; Y v .A v- 3- r by stampingoroppositensides of the-rod may In the drawing accompanying this application be ground down.- In eithergcase it is important Fig. 1 is a sectionl of aconcretewall and .thel thatga relatively square lshoulder 5 be formedv 15 l wall forms held in place with my invention. at the juncture of the attened end portion andv Fig 2 isja sectional view oi alportion of Fig. the enlarged central portion.` .i j Y 1 as seen Vfrom thelline 2'2 oiFig. 1. Y setting up the'form walls, the rods extendA Fig. 3 is an enlarged*sectionalviewrof a por- 'horizontally transversely/of .the Walls: with theirtion of Fig. 2.as seen from` the line 3-3 of flattenedendportlons disposedin a horizontal 20 Fig. 2. y i 'plane between the adjacent edgesof'the super- Fig. 4 is a section `of a concrete; wall with theV posed. boards forming the fwalls. Insome informs and showing means for receiving a porstances theedge of theboardfresting on the flati tion of my device from the concrete wall in which tened portion is formed with a notch v6 to re- Fig. 5 isV an end view ofthe portion of Vmy boardswillcornetogether ornearly so, although device shown inFig. 4 as seen from the line 5 -5 i many-times asatisfactory wallmay be built with-V of Fig. 4, I 4outthefnotch.A l

One of" theV principal-objections heretofore *The outerendsotthe rod R, or the outer ends Y ceive this flattened` portion so the edges of the y 'Y concrete l building Iconstruction where,.th e Vwall ofthe flattened portions 3frespectively, are pro- `30 formsare spaced and held together bystraps videdwith: as lot -7 Vvextendinglongitudinally and metal rods, isthat the metal rods or straps thereonmust be left in .the concrete wallsg after the The shou1ders 5 vonthe rod formstops to limit forms Vare removed andthe concrete has set.v thefinwardxmovementof the form walls alongmade.'4 Where rods andivires are ,lusedythe ends the wallstogether,` Iprovide transversely ex of the ro-ds or wires are ,brokenofl adjacent the tending-beams V8 and 9 Valcove and below. the outer surfaces of the walls, leavingjthe ends eX-f ends of 1 thel rod "outwardly, .of,the stddding 2 posed. Efrorts to overcome this objection have positioned. with anedge ofthe beams each against,v

Where ,wires are used, the same objection is therodtoward each other,a nd inorder to draw 35 40 been made by making special tapered rods which the'outer edge of the Studding. These beams 40 may be pulled out of the concrete walls, and the substantially rest against the upper and lower holes in the wall then iilled with cement. Howsides of the' attened end portions 3 of the rod ever, where these devices have been used, Volojec- R respectively and are forced Yagainst the studtionshavebeen raised to the size of the holes ding, thereby'drawingthe wall 1 on'either side left in the wall, and the contractors loloject beagainst the shoulder on the rod, thus spacing V45 cause .the devices can be pulled out from one the walls apart the distance of theenlarged censide only. Y v ,tral portion 4 of the rod. My invention eliminates the objections noted In order to force the walls inwardly `toward and provides improvedmeans for setting up the veach other along and against thestops, a flat molds or' forms, insures the proper spacing of the bearing plate 10 provided with an openingv 1 1 50 form sides, and is quickly removed after, the shaped to pass the flattened end of the rod R is concrete wallsY are set. slipped over the outer end of the rod and against In the drawings the mold or forni for the conthe Vouter edges of the transverse beams Sand 9 crete wall A comprises opposed wall'sl of boards and a wedge plate 12 is inserted at its reduced or other sheet material. The boards of the walls end in the slot 7 outward of the plate 1Q.

a wire connects the wedge and the bearing plateV` 10, so theywill always be together, ready for use. After the concrete wall has been poured and set, generally the following day after pouring,'the; wedge 12 and bearing plate 10 'are ,removedand the beams 8, 9, studding 2 and walls 1' aretaken It will thenrbe seen, asshown inFigs',

down. i Y that the rods R may be drawngout` of .the wall from either side without removing any auxiliaryV keepers on the rod; or breaking the, concrete, merely by .inserting thenhooked end 14 of a rod 15 in the slot 7 in leitherend-offtherod Rl and driving with a hammer against an upturnedend 16 formed on the outeiendof rod 15.!V I also pro" vide another-,projection V1"I`fintermediate the `ends of the rodA 15 for driving against, -since thev workmen on scaiolds generally have insufficient footing to enable them to completely remove the'rod by driving only Yon the portion v15 of the driving rod. The rod-,R is first partiallyvdriven out by driving on the projection 16V and the finish of the 1 driving is onrprojectionl'l. r- V- It will be seen from the foregoing# description that this device is extremely siinple'and economi'-V cal to make, and in`-its' applicationit makes thesetting up of wall formsa' very Vsimple operation, since there are noispeoial pins or'clips required as stops on the rod to become set into the concrete wall vand requiring removal'thereof in' order to pull Vthe rod out,v 'and nospecial tapering of theY spacing rod or threads' and nuts for drawing the forms together. Only a small hole'is rleft inthevv wall after removal of therod,fwhichis easily and: quickly filled up with a cernentgunfand the rod may be pulled out fromv either sideof the wall.

f Having described my invention, I claim: 1. In concreteV forml apparatus, a' spacer-*rod adapted to Vpass transverselythroughlthe form,r said rod having anv imperforate body-'portion ofV uniform thickness throughout' itsv lengthand end 'portions' of reduced thicknessfthesides of the form beingprovided'with openings adapted to passthe reduced ends only of the spacerrod to the outer sides thereof respectively `whereby y the inner vsides of the form will be'limited against `movement toward-each other bythe "enlarged body portion, removable means on theends of the spacer rod outwardly ofthe wallsof theform` for holdingfthe wallsinspaced relation against thevendsrof the enlarged body DOrtion, and means f .y `2. In combination with Y acter described for concrete forms in which the rod is provided with va transversely extending 5 for drawing the .spacer rod out of the concrete wall after removal ofY said means and thefwallv form, said latter means comprising a driving rod v provided with a hooked endmeans"on the outer' end of the spacer rod adapted for engagementv gitudinally of the spacer rod when in engagement therewith.' "i

opening inv an end thereof, means for withdravV ing 'said tie rod from the concrete wall Vafter re' mova'l of the form walls comprisinga driving rod Yprovided with a' hook at one end adapted for en-.V

gagement in the opening the end of the tie rod f with the hooked end of the driving rod and a prof v jection extending laterally from the driving rodl j to drive against, said driving I'Qd extending lon- 1 K Y a tie rod of the charand a member on the driving rod spaced there- 1 along from saidfmeans for driving against.

v3. vA concrete form tiev rod comprisingra'solidV one-piece solid rod having attenedend portions adapted to pass between the boards ofthe' opposed walls ofv a wall form, the .portion of theI 'rodbe-'" tween said end portions being cylindrical in 'cross of said end portions whereby the rod rnaybe ro-fj tated for loosening and withdrawing fromY eithen'- Y i* 30Q 1.Y ing movement of the wall'forms inwardly'along i Y side of the nished wall of concrete, means limit- 257;v A section and of a uniform diameter throughoutitsv length substantially equal to the maximum width@ said rod comprising Vsquare'sh'oulders formed Aon the rod transversely thereof at-Vthe junctiongofL the end portions andthe portion ofthe rod be- Y ing' nat surfaces adapted to- `directly engage the ,i opposed sidesof the wallsV of the form respecV-"rvv 'v tween the ends, said shouldershaving axially fac-A' tively, said flattenedl end portions being'providedf with an opening extending therethrough and"V 4Q through said openings Yand to engage the outer' y sideV ofthe wall for retaining the walls( of the form Y 1v,

wedge means arranged.y and adapted Sto extend@l against said shoulders. 'Y

,4. In vconcrete wall form apparatus, Ya tie' rod' ed to passthrough the opposed'walls of a for`m' said rod'being of a substantially uniform maxi-"A mum diameter Vthroughout lits length, meansY port thefwalls of the forn'rs'paced apart, remvff4 able means secured to the end portions of the/rodV for retaining theY walls'of the form on'thero'd in" "5 i spaced relation, said end portions being' provided" with openings therethrough andmeansv formed; V u

to engage in said openings forwithdrawing the formed on said rod arrangedand adapted to sup-V f', 50'1v rodifrom the concrete wall'after removal'')lf'thel i wall form and the m'eansfor inv'spaced relation.

retaining' the walls! i f 'PETERL'BGnEfr'rL y Y A 

